Weft-operated controlling device for looms.



PATENTED JAN. 13, 1903.

. F. SAMEGK. WEPT OPERATED CONTROLLING DEVICE FOR LOOMS.

APPLICATION FILED APR. 12, 1902.

rrn Tamas a'rn'r Fries.

FRANZ SAMEOK, OF TANN, NEAR DIIR-NTEN,- SWITZERLAND, ASSIGNOR TOMASOHINENFABRIK RI ITI, VORMALS OASPAR HONEGGER, OF RI JTI, CANTON OFZURICH, SWITZERLAND.

'WEFT-OPERATED CONTROLLING DEVICE FOR LOOMS.

SPF-.GIFIGATION forming part of Letters Patent No. 718,529, dated Januar13, '1903.

Application filed April 12.

To aZZ whom it nuty concern:

Be it known that I, FRANZ SAMECK, a citizen of Austria-Hungary, residingin Tann, near Diirnteu, in the canton of Zurich, Republic ofSwitzerland, (whose post-office address is Tan'n, near Diirnten,) haveinvented certain new and useful Improvements in Weft-OperatedControlling Devices for Looms, such devices being operated upon theemptying of the shuttle; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to lettersof reference marked thereon, which form a part of this specification.

I have applied for patents in the following countries: France, onFebruary 1, 1902; Italy, on February 4, 1902; Germany, on February 6,1902; Switzerland, on February 7, 1902; Austria, on February 8, 1902,and Great Britain, on February 14, 1902.'

This invention relates to controlling devices for looms, such devicesbeing operated upon the emptying of the shuttle to control the loomeitherby stopping it as the thread or yarn on the shuttle comes to anend or in the case of automatic looms by mechanically exchanging theshuttle for a full one.

The invention relatesto the class of controlling devices in which theshuttle is provided with a slot at the side corresponding with anopening in the front of the shuttlebox which is carried by the lay, thisopening permitting a feeler-finger to pass into the interior of theshuttle when the latter, together with the lay and box,performs itsforward movement.

The accompanying drawings illustrate my invention. t a

Figure 1 is a plan, partly in section, of the device, the shuttle-bobbinbeing full, Fig. 2 being a similar View showing the bobbin exhausted andthe parts in a diiferent position; Fig. 3, an end View of Fig.1 with astop-finger omitted to show parts at the rear of same; Fig. 4, a sectionof Fig. 1 on line 00 Fig; 5, an end view of Fig. l with the stop-fingerin place; Figs. 6, 7, and 8, corresponding views Serial No. 102.579. (Nomodel.)

to Figs. 3, 4, and 5, but with the parts in the position shown in Fig.2.

The feeler-finger a is arranged to rock laterally on a pivot-pin d,carried in a slide e movable in a guide g, carried by the front beam,which guide is normally pressed by a springf in the direction of theshuttle. The

feeling end of the finger is provided with a few small teeth a' and alsoa rounded and smooth edge ed, as shown, adapted to slip when strikingthe bare bobbin ofthe shuttle.

Attached to finger a is an arm or lever h, a coil-spring In, Fig. 4,being placed around the pivot-pin d and bearing with its free end onlever 77. to keep the finger a and lever h in their normal position,which is that shownin Fig. 1.

A shaft Z'is carried in suitable bearings in the front beam and isprovided at one end with a finger m and at the other with a cam or diskn, a coil-spring 01 around the shaft tending normally to turn it intothe position shown in Fig. 1, the finger n, Figs. 2, 5, and 8, abuttingagainst an adjustable stop and limiting its movement.

The fingermcarries an adjusting-screw the end of which bears against thelever h, and a pivoted catch 0 bears by a projection on same on the camor disk at, the free end of the catch being normally above and out ofthe path of the usual weft guard-hammer b.

The catch 0 is in the'case of looms provided with an automatic shuttleor bobbin changing mechanism connected at its pivoted end with a partoperating such mechanism, so that a movement of the catch will throw itinto action, or in the case of an ordinary loom it is connected with thelever o, pivoted on the beam, which lever carries the weft guard-forkand which stops the loom by relieving the spring-controlled lever 19.

In the operation of the device so long as there is su fficienttightly-wound thread on the shuttle-bobbin at the part where it comesinto contact with the finger a the latter will not rock on the pin dduring the working toand fro of the lay, as owing to the action of theteeth on the thread the finger a and slide 6 are driven back in astraight line at every second movement of the lay by compressing everytime the spring f-that is, whenever the shuttle is in the box at thatend-and during this time the shaft Z is stationary, the catch a restingby its projection on the disk or cam 92, Figs. 1 and 3, thereby allowingthe Weft guard-hammer b to pass freely under it in both directions.\Vhen, however, there is no more thread on the bobbin or only the lastloose windings of same on the part touched by the finger, the teeth ofthe latter will no longer have a hold on the bobbin, owing to which thespringfhinders the slide a to move backward and the finger will rock onpin (1 at the next movement of the lay by overpowering the spring 70 andturn into the position shown in Fig. 2, so that the lever It will turnshaft Z, and with it the disk or cam 11, which latter will allow thecatch 0 to fall, so that on the next backward movement of the weft guardhammer b the latter is caught, the movement of the catch 0 at the sametime effecting one or other of the operations before named, so that inthe case of a non-automatic loom the stoppage will be effected beforethe shuttle is quite exhausted, by reason of the small winding of threadwhich may be left at the time that the device comes into operation.

It will be seen that the device comes into operation by reason of orwhen the bare spindle is presented to the finger and is not operated, asis usual in devices of this kind, only by the decreasing diameter of thespool.

Having now particularly described and ascertained the natu re of thesaid invention and in what manner the same is to be performed, I declarethat what I claim is- 1. In a device of the class described, thecombination of the lay, a shuttle, a bobbin, a device for stopping theloom, a pivoted feelerfinger capable of yielding in a direct line with,and movable by the forward movement of the lay and provided with teethon its end adapted to engage with the thread in the shuttle carried bysuch lay and a smooth rounded part adapted to slip when striking thebare bobbin of the shuttle after the thread is nearly exhausted so thatit will turn and operate the said device for stopping the loom or anequivalent device, substantially as described.

2. In a device of the class described and in combination, the lay, theshuttle, a bobbin, stop mechanism, a pivoted spring-controlled finger, alever carried by same, a yielding guide for carrying such parts, ashaft, a finger on said shaft adapted to be struck by the lever, a camordisk movable from such shaft and a catch normally held up by such camor disk and controlling the stop mechanism of the loom or an equivalentdevice substantially as described.

In testimony that I claim the foregoing I have hereunto set my hand this29th day of March, 1902.

FRANZ SAMEOK.

Witnesses:

A. LIEBERKNECHT, HERMANN HUBER.

